Question
In the figure not drawn to scale, Z is the centre of the circle and CDF and ADE are straight lines. If ∠EDF = 50° and ∠CDZ is 4 times of ∠ZDA, find ∠ABC.
4 m

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In the figure not drawn to scale, Z is the centre of the circle and CDF and ADE are straight lines. If ∠EDF = 50° and ∠CDZ is 4 times of ∠ZDA, find ∠ABC.